<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<button type="button" onclick="b_tiao_c();">b跳转c</button>
		<button type="button" onclick="qianjin();">前进</button>
		<button type="button" onclick="houtui();">后退</button>
		  <button type="button" onclick="shua2();">刷新</button>
	</body>
	<script type="text/javascript">
		function b_tiao_c(){
			location.href='c.html';
		}
		function qianjin(){
			history.forward();
		}
		function houtui(){
			history.back();
		}
		function shua2(){
			history.reload();
		}
	</script>
</html>
